refactor(srp): signal managed camera frame baseline directly

managed/XCEngine.ScriptCore/Rendering/Core/ScriptableRenderPipelineAsset.cs

@@ -69,6 +69,17 @@ namespace XCEngine.Rendering
             return GetCameraFramePlanPolicyAssetKey();
         }
 
+        protected virtual bool UsesNativeCameraFramePlanBaseline()
+        {
+            return false;
+        }
+
+        protected virtual bool UsesNativeCameraFramePlanBaselineContextual(
+            int rendererIndex)
+        {
+            return UsesNativeCameraFramePlanBaseline();
+        }
+
         protected virtual string GetRenderSceneSetupPolicyAssetKey()
         {
             return string.Empty;